Coke-oven.



W. B. SMITH, SR.

00KB OVEN.

APPLICATION FILED 1111111, 1908.

Patented Mar. 16. 1909.

7BHBETS-SHEET 1.

W1 tn eases W. B. SMITH, Sn.

00KB OVEN. APPLICATION FILED JULYI 1908.

Patentd Mar16,1909.

7 BHEBTS-SHBET 2.

nwutoz 1 l canes W. B. SMITH, Sn.

00KB OVEN.

APPLICATION FILED JULY 1, 1908.

91 5,630, Patentd Mar. 16, 1909.

'W. B. SMITH, Sn.

00KB OVEN.

APPLIGATION FILED JULY 1, 190B.

Patgnted Mar. 16, 1909.

7 SHEETS-SHEET 4.

W. B. SMITH, Sn. 00KB OVEN.

APPLIUATION FILED JULY 1, 190B. 91 5,630, Patented Mar. 16, 1909.

uumdoz W. B. SMITH, SB.- UOKE OVER.

APPLICATION FILED JULY 1, 1908.

Patented Mar. 16, 1909.

Qvwautoz W4. Mm

the

provide a series .of elevated ovens provided with means for removing coke from the bot- .bination or assemble e of-'co6p.era; ti

WILLIAM B. sn rrn, sn, or PITTSBURG, PENNSYLVANIA.

cons-oven.

No, oyiieeo.

Specification of Letters liiient.

Patented March is, 1909'.

Application filed. July 1, 1008. Serial NOJMLQM.

To all whom it may concern:

Be it known that I, WILLIAM B. SMITH, Sn, a citizen of the United States of America, residing at Pittsburg, in the county of Allegheny and Stateof Penns lvania, have invented certain-new and use ul 'Im rovements in Coke0vens, of which the fo owing is a spleoification, reference being had therein to t e accompanying drawing.

This invention relates to coke ovens, and rimery object of my invention is to provide a series of ovens from beneath which coke can be easily and expeditiously removed and discha ed into cars and receptacles provided there $01 A further object of this invention is to provide a retort for the production of coke having a detachable bottom or base thatcen be readily removed to discharge coke end then replaced to support coal or the raw product within the retort. 1

A still further object of my invention is to provide a novel coke drawing or dischargi' apparatus for ovens constructed in -'eccor ance with my invention, the a; peratus of each oven being independent y operated 'from other ovens arranged in a series, and o era-ted from a source of power common 'to t e series of ovens.

a A still further object of my invention is to tom of said oven without integrating the ode. V

' e-' invention in its broadest aspect in- ;breaking or disvolves positive and relia'bleme'ans for loading and dischar ng a coke oven, the construction of the oven eingsuch that immediately upon the coke thereof being discharged; it can be refilled wit out reconstructing an art of the oven. 0 this end, Ihave devise ovens embodying a plurality ofstructural-elements,

which when combined provide'a s'afedurable and highhly efficient coke oven. y

In 't e accom 'anying drawings I have represented and erein I describe a good form of oven embodying my invention so Tar as it is concerned with coke, and ads, ted to effectuate my method of discharg g drawing coke.

The ovens as invented comprehendecominstru' jmentalities, which, madly" consi cred, is novei as 'a general combinaticn,-'and also comprehend vari'ousimprovements in the construction ofthe elementsthemselves, and various sub com'binationsdf selectedelements.

The principal elements of the invention namel an oven structure, a detachable oven ass and car, an elevate-grand a universal winch or hoisting car, will be hereinafter separately and specifically desci'ibedin detail, together with several generic contrdlling and operating mechanisms, their associated cooperating a pliences, and dbjjects accomplished from sue 'a combination of elements, n lnthe drawin s:Figure 1 is an elevation o'f a series of co 0 ovens constructed in ac one" com lete oven, 'Fi 6 is aJOngitudin'a sections view of one .o the ovens taken on the line'VI of 3, Pi 7is a, detail view of a double cl utc formiiig part of the controlling and operating mechanism, Fig. '8 is a cross sectional view of one'o'f the ovens taken on the line ViH of Fig. 5 looking in the direction cf the arrow 'of said figure,

Fig. 9 is a bottom plan of e detachclile oven base and car, Fig. '10 is aloniitudineisectional' view taken on'the line X of Fig. 9, illustrating a combined lock endtrippmg lmechanism can'i'ed by, the detachable oven ese Fig. '11' is a similar view tekenomthe line-5H of Fig. 9, fFig.- I2 is e deteil'insi'de elevation of once! the locks used incomes.

tion with the adjustable-oven base supprntsi Fig. 13 is an elevation ofthe co'ntro on operating mechanism as carried by o e-side 'o' the oven, Fi 14 is. an elevation o'f'a brake mechanism, F? view taken on t e line XV of Fig. 13., illustrati theb'rake mechanism, j llg .16 a side e evation of a locking-mechanism, igl 17 is an enlarged elevation of a single utc 13 is c verticalsectionbll forming part of the "controlling mechanism,

and Fig. 18 a. vertical sectional view o'fft he lFocking mechanism taken on the line XVI of i i .-'l3.- I

y coke ovens arvccnstructed 70f inonfusible materiel-end metal, consisting p 1n cipa'lly of-fire brick, 'cl'ay, metalhc casts mni m P129, 6, sh l car-duet j ings, angle bars, frames, and braces, which are assembled to provide a structure, and when assembled in series occupy a space comparatively small with res act to the resent type of bee-hive or 0 long oven. in connection with the ovens I employ a novel coke drawing or discharging apparatus which by virtue of its location rn1 its 0 ovens closely grouped. his 1s ac com lished y elevating t e ovens a desired heig t and locating the apparatus beneath the ovens, and it Is only essential that car its or conveyors be located in close proximit to the ovens for removing discharged or rawn coke. The stability and superim osdtig positiondof the ovens permits obfethe co e wing or isc arging ap aratus ing steadily used without Interfering with the loading or filling of the ovens, and the controlling and 0 rat mechanism psed In connection wit the w" and discharging apparatus is such that co e dust or sunk lar particles of coke will not interfere with the operation of the same.

The controlling and o crating mechanism is assembled at points 0 safety, whereby the lives pgdwoi'lkmen or o raters];1e are not endange w on mani ating t apparatus.

Considering the vllrious elements of the invention in detail, reference will first be had to the oven structure. For large coke plants my ovens will be arranged in series or groups, and in some instances to economine in space, one row of ovens Wll] be 5 backed against another row. The ovens are constructed upon suitable foundations and since the ovens of a series or group are identical in construction, I deem it onl necessa to describe one of said ovens In detail 4 hereinafter consider more than one oven in connection with the controlling and operation mechanism.

Each oven comprises four metallic standards 1, 2, 3 and 4, said standards supportin horizontal rectangular metallic frames 5 an ficonnectedb vertical braces 7. The frame 5 suppprts a ase plate 8 and the frame 6 a top p te 9, the former having a large opening 10 formed therein and the latter a small 11 normally closed by a lid 12. Be-

ope

tween e plates 8 and 9 are constructed the walls of the oven, these walls to ,therwith the plates 8 and 9 being built 0 brick,- firo clay, or similar non-fusible material.

.55 The front'wnlllB is provided Withdmbpens.

a a topflate the eokebe ng nn 'rlQ-R v, M I r thei sle "4 11 Theschannel-jb m 49 c 139 for depositing coal within the oven, and in order that the shutter 15 can be easily reached, 1 provide the Iran!" 5 with a gallery 31 l'fillt'littl by steps or a ladder 22.

The horizontal frame 5 is provided with depending flanges 23, thesiflanges surrounding the opening 10 of the plan- :5 and are adapted to receive the detacualdc oven base or car.

Forming part of the oven structure and supported by standards 2 and 3 is a rail 41 and suspended from said rail by a movable hanger 42 is a gate 43 of a length correspond ing to the oven. This ate 43 is employed for stri iping coke from t in oven base or car as will ercinafter a pear.

A detachable oven se and car.Fil-ling in the depending flanges 23 of the frame 5 is a detachable oven base and car, comprising a body 24 having a covering 25 of non-fusible material, said covering forming the bottom or base of the oven retort 26. The edges of the body of the car are flanged upwardly, as at 27 to fit 11 n the outer sides of the flanges 23 and orm a non-leakablc connection between the oven base and the oven structure. Longlitudinally of the body 24 are arranged -r ers 28 supporting bearings 29 for revolu ls axles 30 Mounted upon the axles 30 are wheels 31 having central peripheral flanges 32.

T e rear edge of the oven base or car is provided with a pivoted latch 32, ca able of sadngin in one direction and the o )ject of this latdll will hereinafter appear.

Secured to the body 24 of the car is a depending casing 33 for a combined lock and tripping mechanism said lock com rising a keeper 34 for a pivoted hook 35. e trippigig mechanism comprises a pivoted latch vmg a keeper 36 for a depending trip 38 and a rearward extension 39. The rearward extension is engaged by a spring-pressed pivoted arm 40 located in the casings 33, said aim holdin the keeper 36 in engagement with the col: 3?, until the pivoted book 36 impinges the arm 40 and releases the extension 39 .as will hereinafter appear.

The oven base and car are normally su ported by, an inclined. elevator which will we considered under another caption, the hook shaped; lever 35 and hook 37 previously mentioned heingelements of this-elevator. V The eleuator.-Directlybeneath the coke oven I provide-a well '44 and; over this well is arranged ,'a plate 45 provided with openings '46 for-adjustable fsu ports, said supports 'pomprisingasleevestfl. t aded upon dependarqdsi irs li fb nn t d re em "swimmers formingithe body of the cle iter; sleeves 41am adjusted "by in [a bar-or lsimilar instrument (not r n s 0 Pmv d dr h or i ii awa ness ncw mn s-51 arranged in pairs, and providing a track upon which the central flanged wheels 31 of the oven base are adapted to travel The elevator in a lowered position is oop ported at an inclination by the forward ends of the rails 51 resting in sockets 52 provided therefor upon a transverse beam 53, while the rear ends of said rails rest upon a bridge 54 adjustably mount d in standards 55. The standards 55 are U-shaped in cross section, and are provided with adjustable pins 56 edit itcd to extend through the ends of the bridge and support the same.

The rear ends of the rails 51 are connected together by a yoke 57, said yoke sup orting the pivoted hook-draped lever 35, tlic roar crid of said lever l'eing weighted and provided with a trip arm 58 adapted to rest upon a ledge 59 hinged to the bridge 54. The ledge 59 is normally supported in a horizontal position and is lowered to provide clearance for the winch or hoisting bar as will hereinafter ap ear.

i'lounted upon the bridge 54 is a roller bearing 59 for the cable of the winch or hoisting car.

In the ends of the channel beams 49 are journaled shafts 60, and upon said shafts are mounted drums ()1 to which cables 62 are attached, employed for raising the elevator. The shafts 60 are normally held in a fixed position by ratchet wheels 63 and pawls 64, said drums 6i heing wound by lacing a crank (not shown) upon the end s of the shafts fit). T hose drums'aro provided where by the tension can be increased upon the cable 62 and the elevator adiustcd to support the rails 5\ at a desired inclination.

Upon the plate 45 and surrounding, the openings 46 are lock casings 65 rovided with openings 66 through which tic adjustable sleeves 47 protrude. In the lock casings 65 are located pivoted levers 67, and after the elevator has been raised, these lovers are swung to close the openings 66 and provide supports for the sleeves 47. The elevator cannot descend until the levers 67 are returned to their normal position.

In conjunction with the rails 51 forming the track of the elevator, other rails 68 are used, these rails bridging a pit 69 in which is arranged a track 70 for cars 7]. The oven base or car is adapted to travel outwardly from the rails 68, and when moved inwardly is stripped of the coke thereon by virt no of t he gate 43, the coke descending into the car 7 upon the track 70.

The oven base or car is limited in its 1nove mcnt upon the rails 68 by a ledge 72 arranged at the opposite sidc of the pit 60 from that upon which the oven is located.

Universal winch and hoisting cur. Arron ed transversely beneath the oven is a tree 73 upon Wlllt'll travels the winch or hoisting car, and this car colilpllsls u body 74 supported upon trucks 75, and in the body is journaled a drum 76 to which a hoisting cubic 77 is atiaciicti'. The iii'uili T6 is pro vided with a large gear wheel 78 meshing with a small gear wheel 79 mounted upon a shaft 80, journaled in the body of the winch,

.said shaft being rotated by a crank (not shown). The winch or hoisting car is anchored to the track 73 by a cable 81 attached to said winch or car, said cable being suitably secured centrally ol' the track 73.

The hoisting cable 77 passes over'a sheave 82 anchored in longitudinal alinemcnt with the roller bearing 59, whereby said hoisting cable can be easily attached to the oven base and car for movin the same from the rail 68 to the rails 51 The end of the hoisting cable 77 is attached to the hook 37 heretofore mentioned in connection with the detachable oven plate and car, this hook being temporarily held by the keeper 36 of the casing 33 secured to the body of theoven base and car.

(ion-trolling and 0' crating mechwntsvn.s.- Journaled transverse y at the rear side of the oven are shafts 83 upon which are mounted drums 84, and to these drums are attached cables 85, supporting an oblong weight 86. Mounted upon the shaft 83 is a beveled gear wheel 87 meshing with a similar gear wheel 88, carried by a longitudinal shaft 89 (see Fig. 6), journaled in hangers 90, arranged at one side of the oven frame 5.

Before further describing the controlling and operating mechanism, I desire to call attention to the arrangement of the shafts 83, weights 86, andshafts 89 of the series of ovens; as shown in Fig. 1 of the drawings. The shaft 83 will extend from one end of the row of ovens to the opposite end, and it will be only necessary to use two of the weights 86, one in connection with each of the end ovens. With a sin le even it is necessary to use two longitudina shafts 89, one u on each side. of the oven, but with a series 0 ovens a longitudinal shaft can be dispensed with by arranging the sin le shaft between the ovens and providingsuir shaft with double clutches, as will presently appear.

1 will first describe the longitudinal shafts 89 located at the ends of the series of ovens, and then the shafts intermediate the ovens. Each shaft is providcdn'ith single clutches ill, a brake. mechanism 92, and a locking mechanism 93, these mechanisms constituting the means employed [or conttollingthc operation of the ovcns. The single clutch J1 comprises a block 04 lixcd upon the shaft 89, said block having a sleeve )5 for a revoluble spool 96, the side of said spool confronting block .H having a lug 97 adapted to be engaged by a pin 98, carried by an arm tit), pivotally connected to the block 94, as attdt). The pivoted arm 99 is slotted, as at 101, and extending through said slot is a set screw lU'l, employed for locking the arnLin a llll) lOti . en agement with the lug 97.

I spools 96.

fixed position, with the pin 98 in or out of The hoisting ca les 62upon the outer sides of the end ovens are attached to the spools 96, and assuming that the shaft 89 is rotated, and the ins 98 engage the lugs 97 of the single clutclies 91, the hoisting cables 62 can be wound upon the The pivoted arms 99 are provided with depending handles 103 whereby the single clutches can be easily manipulated by an o )erator beneath the ovens.

The brake mechanism 92 comprises a brake wheel 104, keyed upon the shaft 89, as at 105. Adapted to engage the brake wheel 104 is a brake band 106 supported from a hanger 107 carried b the frame 5 0f the oven.

One end of the bra e band 106 is pivotallv connected to the crank 108 of a shaft 109, while the opposite end thereof is pivotally connected to an eccentric strap 1111 surrounding an eccentric 11], carried by the y The shaft 109 is journaled in side shaft 109. frames 112 suspended from the hanger 107. The side frames 112 are cut away, as at 113, to clear the shaft 89, and one of said side frames is rovided with a strap 114 for a pivoted pawl 115, said parts engaging a semicircular rack 116 carried by a lever 117 mounted upon the end of the shaft 109. The lever 117 extends downwardly whereby an operator can easily manipulate the brake mechanism, and the pawl 115 is provided with a cable 118, to permit of said pawl being easil raised.

By re erence to Figs. 14 and 15, it will be observed that when the lever 117 is swung to the left that the brake band 106 is immediately placed in engagement with the brake wheel 104, and the rotation of the shaft 89 can be easily controlled. The )awl 115 is employed for locking the brake band 106 in engagement with the brake wheel 104.

The locking mechanism 93 comprises hinged members 119 and. pivoted members 120, said members being suspended from a hanger 1'21 carried by the frame 5 of the oven. The members 119 and 120 are ar ranged upon the sides of the ratchet wheel 122 mounted upon the shaft 89, said members bein cut away, as at 123, to clear said shaft. T e members 119 are )rovided with straps 124 surrounding the shaft 89, whereby said members 119 cannot move with respect to said shaft. The members 121) are provided with oppositely disposed segment shaped sl'ots 125, and loosely mounted in said slots is a transverse pin 126 carrying a pawl 127 normally held in engagement with the ratchet wheel 122 by a spring 128. The lower ends of the mem hei's 120 are connected by a transverse beveled bar 129 adapted to i be engaged by a hook 130 pivotally mounted between the ends of the members 119. Journaled in the lower ends of the members 119 is. a shaft 131 havingr-rzmks132nnd 133, also a cam 13 .1 for engagin the hook 130 and elevating the same. T 1e crank 132 serves as a lever for releasing the hook 130, while the crank 133 is provided with a weight 135 for normally maintaining said cam 134 out of engagement with the hook 130.

The ocking mechanism 93 is em loyed for locking the shafts 89 and 83, where y the descend of the weights 86 cannot rotate said shafts. When the hooks 130 are elevated to free the members 120, the ratchet wheel 122 has a tendency to swing the members 120 outwardly, and the spring 128 will immediately force the pawl 127 to the upper.ends oi' the slots 125, and the pawl 12? will hang out of engagement with the ratchet wheel 122 and the spring 128 To restore the pawl 127 and the spring 1:28 to the normal position, the transverse pin 126 protrudes from one of the slots 125 and is bent downwardly to provide a handle 136.

The longitudinal shafts 89 between the ovens are provided with doubleelutches137, these clutches being constructed similar to the clutches 91 with the exception that each clutch is provided with two pivoted arms 99, each of which is ea able of being located in a fixed position, as eretofore described. To the spools 96 of the double clutches are attached the hoisting cables 62 of the confronting sides of the oven bases and ears of two adjoining ovens.

General operation.Assuming that theseries of ovens illustrated in Fig. 1 0f the drawings is in operation, and it is desired to re move the coke from the oven which I have designatwl A; with the oven base or car in an elevated position, the locking levers 67 are closed, retaining the adjustable supports 1' "17 above the plate 45 of the well 44. The 1 double clutches 137 are neutral, the brake mechanism 92 and the locking mechanism 93 are released, and the entire mechanism throughout the series of ovens is in condition to permit of the coke being removed from the oven A.

l The first step taken by the operator is to set and lock the brake mechanism at either end of the series of ovens. The operator 1 then proceeds to the oven A and opens the 1 locking levers 67, and sets the double clutches 1 137, whereby the hoisting cables 62 will unwind from the spools 96 and the cables 85 will wind upon the drums 87 of the shaft 83, elevating t he weights 86 when the oven base and car descends. The operator then re- 1 turns to the brake mechanism, releases the pawl 115 and controls the descend of the 1 oven base and car tl'irough the medium of the l lever 117.

With the oven base and car in the elevated i position shovn in Fig. 1, the lever 35 (See 1 Fi". 6) is held in en a ement with the kee ier h D D SH, and as the oven base and car descend and .assume an inclined position. tliepivoted ravity'paii'l 58 (see Fig. 6) impin es the edge 59, tripping the hook-shaped en of the lever 35, releasing the oven base and car.

immediately upon the release of the oven base and car, said base and car move on to the rails 68, to the position illustrated in Fi 6 of the drawings. The operator or one of iis assistants now sivin s the gate 43 into position to strip the oven use and car of the coke when" the same is drawn back to the rails 51. Before the oven base and car pass on to the rails 68, the operator locks the brake mechanism 92, v hereby the elevated weights 86 cannot immediately return the elevator to an elevated position. To return the oven base and car to the elevator, the winch or hoisting car is now brought into use and is anchored centrally of the track 73 a short distance from the oven A, the sheave 82 is anchored contrall of the track 73 in alinement hit-h the roler bearing 59, as heretofore described, and the hook 37 of the cable 77 is attached to the oven base and car, as illustrated in Fi s. 6 and 11 of the drawings. When the shaft 80 of the winch or hoisting car is rotated the oven base and ear is moved upon the elevator and the hookshaped lever 35 automatically keyed by the i keeper 34 to the locking and trippin mechanism of the oven base and car. car is returned to the elevator, the latch 32 will engage and shift *the u )per end of the gravity arm 58 and swing t e lower end of said arm inwardly upon the ledge 59 and thereby retain the hook-shaped end of the lever 35 in an elevated position to engage the kee er 34 and ride downward] under the hac of the kee er. The dcpti of the keeper 34 is not su icient to place the arm 58 in a vertical position, as the hook-she ed lever engages the same, consequently n iile the car is on the elevator, the arm 58 n ill he in an inclined position and only assume a vertical position ii hen the car is oil the clevator as shovn in Fig. 6. The hook-shat )ed lever 35 not only engages the keeper 34 but impinges the arm 40, releases the extension 39, and the hook 117 is pulled out of engagcment with the keeper 36. The oven base and car is now located upon Iht elevator and the winch and hoisting car can be moved for use in connection \iith another oven. The operator gradually releases the brake mechanism and the elevator moves upwardly as the weights 86 descend. After the oven base and car have entered the o ien ing 10 surrounded by flanges 23, the loc ing levers 67 are thronn into position to engage the lower ends of the supports 47 and prevent an oven base and car from descending while the oven is being refilled and during the reduction of coke.

hile in the drawings forming a part of this application there is illustrated the preferred embodiments of my invention, it is to W en the be understood that the elements therein can be varied or changed as to shape, proportion and exact, manner of assemblage without departing from the spirit of the invention.

Having now described my invention what i claim as new, is

1. A coke oven embodying standards, horizontal superimposed frames supported thereb a non-fusible oven structure carried by salt frames and having a bottom opening formed therein, depending flan es surrounding said opening, an elevator eneath said structure, said elevator comprising adjustable supports, beams carried thereby, drums adjustably mounted in said beams, rails suported by said beams; a detachable oven liase movably mounted upon said rails and adapted to be supported in engagementwith the flanges of said oven structure, a combined locking and tripping mechanism carried by the bottom of said oven base, a hook shaped lever carried by said elevator and adapted to be engaged by said mechanism for retaining said even base upon said elevator, tracks arran ed at one side of said oven for receiving sai oven base from said elevator, a ate movably supported by said standard; for stripping coke from said base, a hoisting car movable with respect to said oven, a hoisting cable connecting with said car and adapted to be engaged by said looking and tripping mechanism for placing said oven base upon said elevator, said mechanism including means for automatically releasing said hoistin r cable, shafts supported longitudinally of said oven, shafts supported transversely of said oven, 11 n eight suspended from said transverse shaft and adapted to be elevated thereby, clutch ITlEChHJYISmS lo; cated upon said longitudinal shafts, said clutch mechanisms comprising spools, cables connecting said spools \.ith the drums of said clevator, a brake mechanism carried by one of said longitudinal shafts, and a locking mechanism carried by the same shaft, substantially as described.

2. A coke oven embodying standards, horizontal superimposed frames supported thcrcb a non-fusible oven structure carried by said frames and having a bottom openin formed therein, an elevator bcneat sai structure, said elevator comprising adjustable supports, beams carried thereby, drums adjustahly mounted in said beams, rails suported by said beams; a detachable oven base movably-mounted upon said rails and adapted to he supported in engagement with said oven structure, a combined locking and movably su ported. by said standards for stripping co e from said base, a hoisting car movable with respect to said oven, a hoistin 1 cable connecting with said car and adapteil to be engaged by said locking and tripping mechanism for placing said oven base upon said elevator, shafts supported longitudinally of said even, shafts supported transversely of said even, a Wei ht suspended from said transverse shaft an adapted to be elevated thereby, clutch mechanisms located upon said longitudinal shafts, said clutch mechanisms comprising s ools, cables connecting said spools with the rums of said elevator, a brake mechanism carried by one of said longitudinal shafts, and a locking meehanism carried by the same shaft.

3. A coke oven embodying horizontal superimposed frames, a non-fusible oven structure carried by said frames and having a bottom opening formed therein, an elevator beneath said structure, said elevator com prising adjustable sup orts, beams carried thereby, drums adjusta b detachable oven base movably mounted upon saidrails and adapted to be supported in en agement with said oven structure, a com ined locking and tripping mechanism carried by the bottom of said oven base, a hook-shaped lever carried by said elevator and adapted to be engaged by said mechanism for retaining said oven base upon said elevator, tracks arranged at one side of said oven for receiving said oven base from said elevator, a gate arranged beneath said oven structure for strippim coke from said base, a hoisting car xnova do with respect to said oven, a hoisting cable connecting with said car and-adapted to be engaged by said locking and tripping mechanism for pacing said oven base upon said elevator, shafts supported longitudinally of said oven, shafts supported transversely of said oven,

a weight suspended from said transverse shaft and adapted to be elevated thereby, clutch mechanisms located upon said longitudinal shafts, said clutch mechanisms cone prising spools, cables connecting said spools with the drums of said elevator, and a brake mechanism carried by one of said longitudi nal shafts.

4. A coke oven embodying horizontal superimposed frames, a non fusible oven structure carried by said frames and having a bottom opening formed therein, an elevator beneath said structure, said elevator comprising adjustable supports, bemns carried thereby, drums adjnstably mounted in said beams, rails supported by said beams; a dctachable oven base movabl mounted upon said rails and adapted to be supported in enga emcnt with said oven structure, a roll;-

binei locking and trippingmerlmnism (2Ll-- i ried by the bottom of said oven base, a horde ly mounted in said beams, rails supported by said beams; a

I shaped lever carried by said elevator and adapted to be engaged by said mechanism for retaining said oven base upon said elevator, tracks arranged at one side of said oven for receiving said even base from said elevator, a gate arranged beneath said oven structure for. strippin coke from said base, a hoisting car movab e with respect to said oven, a hoisting cable connecting with said car and adapted to be engaged by said look ing and tripping mechamsm for placing said oven base upon said elevator, means for moving said elevator, and means for locking said elevator in a fixed )osition.

5. A coke oven embo ying superimposed frames, an oven structure carried by said frames and having a bottom opening formed therein, an elevator beneath said structure, said elevator comprising sup Jorts and rails; a detachable oven base movably mounted upon said elevator and adapted to close said opening, and adapted to move from beneath said structure, a combined locking and tripping mechanism carried by said ovenbase, means engaging said mechanism for holding said base upon said elevator, means actuated by the lowering of said elevator to release said base, means operatable in connection with said mechanism for moving saidbase on to said elevator, means'for moving said elevator and means for locking said elevator in a fixed position.

6. A coke oven embodying superimposedframes, an oven structure carried b said frames and having a bottom opening f drmed therein, a detachable oven base for closing said oven, an elevator arranged beneath said structure for moving said oven base, rails arranged adjacent to said elevator to receive said oven base, means for normally holding said oven baseupon said elevator, means actuated by a lowering movement of said elevator for releasing said base and allowing suid base to move on to said rails, means detachably connected to said oven base for moving said oven base on to said elevator, and means arranged at one side of said structure for stripping coke from said base when moved to said elevator, means for moving said elevator, and means for locking said elel vator in a fixed position.

7. A coke oven embodying superimposed frames, an oven structure carried by said frames and having a bottom opening formed therein, a detachable oven base for closing said oven, an elevator arranged beneath said structure for moving said oven base, rails arranged adjacent to said elevator to receive said oven base, means for normally holding said oven base upon said elevator, means actuated by a lowering movement o'lsaid elevator for releasing said base and alien ing said base to move on to said rails, int-ans detachably connected to said oven base for 1 moving said 'ovcnbase on to said elevator,

means arranged at one side of said structure for stripping eoke from said base when moved to said elevator, and means for moving said elevator.

8. A coke oven comprising superimposed frames, an oven strueture carried by said frames and having a bottom opening formed therein, a detachable oven base for closing said opening, an elevator arranged beneath said structure for raising and lowering said 1 base, rails arranged. at one side of said strurture and adapted to receive said base from said elevator, means actuated by the lowering of said elevator for allowing said base to move on to said rails, means detaehably eonneeted to said base for moving said base 'l'rom said rails to said elevator, means for locking said. base upon said elevator, means for moving said elevator, and means for locking said elevator in a lixed position.

9. A coke oven comprising superimposed frames, an oven struetnre married by said frames and having a bottom opening formed therein, a detachable oven base for (losing said opening, an elevator arranged beneath said structure for raisins and lowering, said base, rails arranged at one side of said structure and adapted to reeeive said base from said elevator, means actuated by the lowerin of said elrwator lor allowing said base to move on to said rails, rneaiisdetaehably conneeted to said base for moving said base from said rails to said elevator, means for locking said base upon said elevator, and means for moving said elevator.

H). An oven eomprising superimposed frames, an oven structure earried there v and having, a bottom opening formed therein, an oven base for closing said opening, an elevator for moving said oven base, rails arranged at one side of said structure to receive said base from said elevator, an adjustable means arranged at one side of said structure for stripping coke from said base when moved back on to said elevator, and means for controlling the operation of said elevator.

ln testimony whereof I allix my signature in the presenee of two witnesses.

WILLIAM B. SMITH, Sn. Wit nesses:

- 'lnozuixs 1). SMITH, li. ll. BU'JLEIL 

